featured speakers include mayor julianne castro and and first lady michelle obama. and thursday, vice president joe biden and president barack obama. and use our convention hub to make and share video clips. >> in the end, in the end that's what this election is about. do we participate in a politics of cynicism? or do we participate in a politics of hope. >> hope! >> john kerry callsen us to hope. john edwards calls on us to hope. i'm not talking about blind optimism, the willful ignorance that thinks health care will go away if we just don't think about it. i'm talking about something more substantial. >> count your own opinion and connect with other c-span hit earles. c-span.org/campaign2012. >> this week on "q&a," first time director ami horowitz discusses the newly released documentary film titled, "you and me." >> ami horowitz, you made a documentary, then you left your apartment one day at the new york city and somebody said something to you. what was the story? >> first of all, thank you very much for having me on. i appreciate it. we had something in common